Results 11 to 20 of about 1,246,943 (339)
General properties of the decay amplitudes for massless particles [PDF]
Nuclear Physics B, 1996 We derive the kinematical constraints which characterize the decay of any massless particle in flat spacetime. We show that in perturbation theory the decay probabilities of photons and Yang-Mills bosons vanish to all orders; the decay probability of the graviton vanishes to one-loop order for graviton loops and to all orders for matter loops.
Gaetano Fiore, Giovanni Modanese
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HADRONIC B DECAYS: A GENERAL APPROACH [PDF]
International Journal of Modern Physics A, 2007 In this paper, we propose a general approach for describing hadronic B decays. Using this method, all amplitudes for such decays can be expressed in terms of contractions, though the matrix elements are not evaluated. Many years ago, Buras and Silvestrini proposed a similar approach. However, our technique goes beyond theirs in several ways. First, we
Maxime Imbeault +2 more
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Ultrafast generation and decay of a surface metal [PDF]
Nature Communications, 2021 AbstractBand bending at semiconductor surfaces induced by chemical doping or electric fields can create metallic surfaces with properties not found in the bulk, such as high electron mobility, magnetism or superconductivity. Optical generation of such metallic surfaces on ultrafast timescales would be appealing for high-speed electronics.
Sesha Vempati +3 more
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General decay of solutions of a viscoelastic equation
Journal of Mathematical Analysis and Applications, 2007 AbstractIn this paper we consider the following viscoelastic equation:utt−Δu+∫0tg(t−τ)Δu(τ)dτ=0, in a bounded domain, and establish a general decay result which is not necessarily of exponential or polynomial type. This work generalizes and improves earlier results in the literature.
Salim A. Messaoudi
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Natural Image Decay With a Decay Effects Generator
IEEE Access, 2023 We present a novel framework for simulating time-varying decay effects for natural images. Conventional methods assume the input image includes enough decay information and uses the color or texture information of the decayed regions to transfer its effect to the non-decayed regions.
Guoqing Hao +4 more
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DECAYS OF FOURTH GENERATION BOUND STATES [PDF]
International Journal of Modern Physics A, 2012 We consider the decay modes of the heavy [Formula: see text] bound states originating from Higgs boson exchange between quark–antiquark pair. In case of a small coupling between the fourth and lower generation the main decay mode is [Formula: see text] annihilation.
Victor V. Flambaum +2 more
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Mathematics, 2023 The Lord Shulman swelling porous thermo-elastic soil system with the effects of microtemperature, temperatures and distributed delay terms is considered in this study.
Abdelbaki Choucha +4 more
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Stability result for Lord Shulman swelling porous thermo-elastic soils with distributed delay term
Open Mathematics, 2023 The Lord Shulman swelling porous thermo-elastic soil system with the presence of a distributed delay term is studied in this work. We will establish the well-posedness of the system and the exponential stability of the system is derived.
Choucha Abdelbaki +2 more
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Is Generalization Decay a Fundamental Law of Psychology?
Behavioral and Brain Sciences, 2023 Generalizations strengthen in traditional sciences, but in psychology (and social and behavioral sciences, more generally) they decay. This is usually viewed as problem requiring solution, but it could be viewed as a law-like phenomenon. Generalization decay cannot be squelched because human behavior is metastable and all behavioral data collected thus
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Open Mathematics, 2022 In this paper, our aims are to study the stability with general decay rate of hybrid stochastic fractional differential equations driven by Lévy noise with impulsive effects.
Hou Tingting, Zhang Hui
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